[Ips-dhfpr] IPS Daily HF Prop Report - 19 April 14 issued 2330 UT on 19 Apr 2014

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 APRIL 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 APRIL) 
Date   T index  Conditions    
19 Apr   121    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day.
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10MeV Proton/PCA Event Began 19 04 2014 0100UT and is in progress

Monthly T index:
Month  T index
Mar      141
Apr      86
May      86


2. FORECAST (20 APRIL - 22 APRIL)
Date   T index  Conditions       MUFs                              
20 Apr   100    Fair-poor        Near predicted monthly values
21 Apr    60    Fair             Depressed 15%/near predicted 
                                 monthly values    
22 Apr    80    Normal           Near predicted monthly values   

COMMENT: IPS Preliminary HF Communications Warning 23 was issued 
on 18 April and is current for 20-22 Apr. HF propagation conditions 
are good with MUFs at or exceeding predicted monthly values. 
Significant geomagnetic activity is expected on the 20th and 
21st of April which may impact the MUF for HF communication, 
particularly in polar, southern and central Australia. 

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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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